From cd4bb2a3344cb53d9234cca232edfb2dce0f0a35 Mon Sep 17 00:00:00 2001 From: Shalom Toledo Date: Tue, 18 Jun 2019 12:45:35 +0000 Subject: [PATCH] mlxsw: spectrum_ptp: Fix compilation on 32-bit ARM Compilation on 32-bit ARM fails after commit 992aa864dca0 ("mlxsw: spectrum_ptp: Add implementation for physical hardware clock operations") because of 64-bit division: arm-linux-gnueabi-ld: drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.o: in function `mlxsw_sp1_ptp_phc_settime': spectrum_ptp.c:(.text+0x39c): undefined reference to `__aeabi_uldivmod' Fix by using div_u64(). Fixes: 992aa864dca0 ("mlxsw: spectrum_ptp: Add implementation for physical hardware clock operations") Signed-off-by: Shalom Toledo Reviewed-by: Ido Schimmel Reported-by: Nathan Chancellor Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c index 2a9bbc90225e..bb6c0cb25771 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c @@ -81,13 +81,12 @@ static int mlxsw_sp1_ptp_phc_settime(struct mlxsw_sp_ptp_clock *clock, u64 nsec) { struct mlxsw_core *mlxsw_core = clock->core; + u64 next_sec, next_sec_in_nsec, cycles; char mtutc_pl[MLXSW_REG_MTUTC_LEN]; char mtpps_pl[MLXSW_REG_MTPPS_LEN]; - u64 next_sec_in_nsec, cycles; - u32 next_sec; int err; - next_sec = nsec / NSEC_PER_SEC + 1; + next_sec = div_u64(nsec, NSEC_PER_SEC) + 1; next_sec_in_nsec = next_sec * NSEC_PER_SEC; spin_lock(&clock->lock); -- 2.25.1